Too Good To Be True?

[tyyrlym]

No details? Again, without knowing how he defines aquarium safe and why their anti-fungal properties are different from the norm I personally wouldn't trust it.

 

[raptorrex]

No details? Again, without knowing how he defines aquarium safe and why their anti-fungal properties are different from the norm I personally wouldn't trust it.

well the thing is all the details are there. health and safety sheets, confirmation of compliance with eec rules, and all subjects relating to that. even ingredients are listed. but no research was done, directly, about aquaria, before going into production. cant find anything in there that would directly affect fish. but others may find something.

i do agree caution may be needed, but with the potential of a sealent like this, it seems cherlish, to me, to ignore it out of hand.

 

[rabbut]

Looking at it, I'd be happy to use it on my own tanks

 

[jwddboy]

Looks a lot like silicone, in that it is harmful to fish before it has set fully and been left. In its paste stage it will give off toxins that will be harmful.

The toxin contained in the paste is vinyltrimethoxysilane which is:
Irritating to eyes.
Irritating to respiratory system.
Irritating to skin.

As you can see from the care sheet, an oral ingestation of the product leaves 11300mg of vinyltrimethoxysilane inside a rat. A fish would be breathing, consuming and being constantly in contact with the stuff, probably enough to, if not kill them, certainly harm them and reduce their immune system, inducing stress.

So, even if we ignore the above info: yes it can be used underwater but with the pressure exerted from the volume of water above a crack or split in a tank it is unlikley to stop the water flowing out. However, as a repair where there is no contact with water a fish is in and where the volume of water above the leak is not too great, it should work well.

 

[raptorrex]

Looks a lot like silicone, in that it is harmful to fish before it has set fully and been left. In its paste stage it will give off toxins that will be harmful.

The toxin contained in the paste is vinyltrimethoxysilane which is:
Irritating to eyes.
Irritating to respiratory system.
Irritating to skin.

As you can see from the care sheet, an oral ingestation of the product leaves 11300mg of vinyltrimethoxysilane inside a rat. A fish would be breathing, consuming and being constantly in contact with the stuff, probably enough to, if not kill them, certainly harm them and reduce their immune system, inducing stress.

So, even if we ignore the above info: yes it can be used underwater but with the pressure exerted from the volume of water above a crack or split in a tank it is unlikley to stop the water flowing out. However, as a repair where there is no contact with water a fish is in and where the volume of water above the leak is not too great, it should work well.

yep very like silicone. only thing is there is nothig perticulally dangeous in silicone. the reason we dont use it when there is water in the tank, is because it wont cure properly, not poisons. indeed the safty sheet reads much the same as for CT1. differnt chemical true, but reaction amd precautions are much the same.